from re import split

# Zidian = {'吕红':'数据库',
#           '周婷':'线性代数',
#           '肖杨':'Python',
#           '李娟':'数据库',
#           '丁锦':'英语',
#           '周玲玲':'Java'}
# Zidian['赵红'] = 'Java'
# Zidian['周玲玲'] = 'Python'
# del Zidian['周婷']
# for z in Zidian.items():
#     print(z)

# print('设置初始用户名')
# y = input()
# print('设置初始密码')
# m = input()
# print('输入用户名密码')
#
# for i in range(3):
#
#     print('用户名')
#     y1 = input()
#     print('密码')
#     m1 = input()
#
#     if y == y1 and m ==m1:
#         print('登入成功')
#         break
#     else:print('密码错误')
